Telephone-transmitter.



C. R. ROGERS. TELEPHONE TRANSMITTER.

' APPLICATION FILED 111 11.10, 1911.

Patented Feb. 20, 1912.

COLUMBIA PuNnawInm UNITED STATES PATENT OFFICE.

CHARLES R. ROGERS, 0F WAVERLY, NEW YORK.

TELEPHONE-TRANSMITTER.

To all whom it may concern:

Be it known that I, CHARLES R. ROGERS, a citizen of the United States, residing at lVaverly, in the county of Tioga and State of New York, have invented certain new and useful Improvements in Telephone-Transmitters, of which the following is a specification. 7

In an application filed by me January 28, 1910, Serial No. 540,631, is disclosed a telephone transmitter constructed to contain an antiseptic.

The object of my present invention is to provide means whereby an antiseptic may be secured around the mouthpiece of telephone transmitters now in common use, so as to thoroughly sterilize the diaphragm of the transmitter, and thereby prevent propagation of germs and the transmission of disease through promiscuous use of the transmitter. This object is attained in the use of such devices as are illustrated in the accompanying drawings, and the invention consists in certain novel features which are hereinafter first fully described and then more distinctly pointed out in the appended claims.

In the accompanying drawings which are to be considered a part of the following description, Figure 1 is a perspective View of the base of a transmitter showing my improvement applied thereto. Fig. 2 is a diametrical section of the same. Fig. 3 is a similar view showing a different form of the invention. Fig. 4 is a'transverse section on the line H of Fig. 3.

The transmitter is provided with the usual base 1 in rear of which the diaphragm is arranged, and which is provided at its center with an internally threaded opening 2, as is now the general practice. The mouth-piece 3 is provided with an externally threaded base or annular flange 4, which is threaded into the central opening of the base, and is thereby secured thereto. The mouth-piece is thus held to the base so as to project forwardly therefrom, and its outer end or mouth is flared so as to receive all of the sound waves and direct the same to the diaphragm of the transmitter. A circular rim or wall 5 projects from the base of the transmitter to the outer end or mouth of the mouth-piece, and incloses the same, so as to form therewith and with the base of the transmitter an annular chamber adapted to receive an antiseptic, 5, whether solid,

Specification of Letters Patent.

Application filed April 10, 1911.

Patented Feb. 20, 1912.

Serial No. 620,190.

liquid or semi-liquid, which will readily but slowly evaporate. In order to transmit the emanations from the antiseptic to the diaphragm, a conduit is provided which in Fig. 2 is shown in the form of an opening 6 through the base of the transmittter at one side of the mouth-piece, protected by a screen 6 of cloth or other material. In this same figure, the rim or wall 5 is shown as having its outer end or edge crimped over the outer end of the mouth-piece, and its inner edge provided with an annular flange 7 through which fastening screws 8 are inserted to secure the said rim to the transmitter base.

In the form of the device shown in Fig. 3, the annular rim or wall is formed integral with the mouth-piece and is held against the base by the mouth-piece when the same is screwed into the central opening of the base, as will be readily understood. In this form of the device, the conduit for transmitting the antiseptic vapor from the annular chamber around the mouth-piece to the diaphragm of the transmitter is in the form of a tube opening or passage 9, extending diagonally through the wall of the mouth-piece and having its outer end disposed within the annular antiseptic-holding chamber, near the outer end thereof, and its inner end opening through the bore of the mouthpiece at or near the inner extremity thereof so as to communicate therethrough directly with the diaphragm.

It will be readily seen from the foregoing description, taken in connection with the accompanying drawings, that my present improvements may be easily applied to any transmitter now in use, and that the cost will be very slight.

The device will add an inappreciable weight to the transmitter and present a neat and attractive appearance, so that its use will readily become general.

The construction is such that no interference or obstruction is presented to the sound waves passing to the diaphragm, so that the transmission of speech will. not be impaired.

Having described my invention, what I desire to secure by Letters Patent is:

l. The combination with a transmitter having a base, and a mouth-piece projecting from said base, of an annular rim or wall extending from the base to the outer end of the mouth-piece and forming therewith a chamber inclosing the latter and adapted to hold an antiseptic, and a conduit having its ends in different radial planes of the transmitter whereby to convey emanations of the antiseptic from said chamber directly to the diaphragm of the transmitter in a path substantially longitudinal of said chamber.

2. The combination with a transmitter having a base, provided with a central opening therethrough, and a mouthpiece projecting from said base and secured in said opening, of an annular rim or wall extending from the base to the outer end of the mouth-piece and forming therewith a chamber inclosing the latter and adapted to hold an antiseptic, and a tube extending through the wall of the mouth-piece and having its outer end disposed in the outer end of said chamber and its inner end within the bore of the inner end of the mouthpiece and connnunicating through the same with the transmitter.

In testimony whereof I affix my signature, in presence of two witnesses.

CHARLES R. ROGERS. lVitnesses FLORA M. SEELY, J OSEPHINE F. DROBNYK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

